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remove old MakeWeak

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R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/16160010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14911 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
dcarney@chromium.org 2013-06-03 08:17:04 +00:00
parent f6499289f6
commit 595d0ea8b0
14 changed files with 45 additions and 112 deletions
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27
include/v8.h
View File

@ -214,11 +214,6 @@ class WeakReferenceCallbacks {
P* parameter);
};
// TODO(svenpanne) Temporary definition until Chrome is in sync.
typedef void (*NearDeathCallback)(Isolate* isolate,
Persistent<Value> object,
void* parameter);
// --- Handles ---
#define TYPE_CHECK(T, S) \
@ -676,11 +671,6 @@ template <class T> class Persistent // NOLINT
MakeWeak<P>(parameters, callback);
}
// TODO(dcarney): remove before cutover
V8_INLINE(void MakeWeak(Isolate* isolate,
void* parameters,
NearDeathCallback callback));
V8_INLINE(void ClearWeak());
// TODO(dcarney): deprecate
@ -4606,8 +4596,7 @@ class V8EXPORT V8 {
typedef WeakReferenceCallbacks<Value, void>::Revivable RevivableCallback;
static void MakeWeak(internal::Object** global_handle,
void* data,
RevivableCallback weak_reference_callback,
NearDeathCallback near_death_callback);
RevivableCallback weak_reference_callback);
static void ClearWeak(internal::Object** global_handle);
template <class T> friend class Handle;
@ -5541,8 +5530,7 @@ void Persistent<T>::MakeWeak(
typedef typename WeakReferenceCallbacks<Value, void>::Revivable Revivable;
V8::MakeWeak(reinterpret_cast<internal::Object**>(this->val_),
parameters,
reinterpret_cast<Revivable>(callback),
NULL);
reinterpret_cast<Revivable>(callback));
}
@ -5555,17 +5543,6 @@ void Persistent<T>::MakeWeak(
}
template <class T>
void Persistent<T>::MakeWeak(Isolate* isolate,
void* parameters,
NearDeathCallback callback) {
V8::MakeWeak(reinterpret_cast<internal::Object**>(this->val_),
parameters,
NULL,
callback);
}
template <class T>
void Persistent<T>::ClearWeak() {
V8::ClearWeak(reinterpret_cast<internal::Object**>(this->val_));

6
src/api.cc
View File

@ -627,12 +627,10 @@ i::Object** V8::GlobalizeReference(i::Isolate* isolate, i::Object** obj) {
void V8::MakeWeak(i::Object** object,
void* parameters,
RevivableCallback weak_reference_callback,
NearDeathCallback near_death_callback) {
RevivableCallback weak_reference_callback) {
i::GlobalHandles::MakeWeak(object,
parameters,
weak_reference_callback,
near_death_callback);
weak_reference_callback);
}

11
src/debug.cc
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@ -619,7 +619,6 @@ void ScriptCache::Add(Handle<Script> script) {
(global_handles->Create(*script)));
global_handles->MakeWeak(reinterpret_cast<Object**>(script_.location()),
this,
NULL,
ScriptCache::HandleWeakScript);
entry->value = script_.location();
}
@ -664,12 +663,12 @@ void ScriptCache::Clear() {
void ScriptCache::HandleWeakScript(v8::Isolate* isolate,
v8::Persistent<v8::Value> obj,
v8::Persistent<v8::Value>* obj,
void* data) {
ScriptCache* script_cache = reinterpret_cast<ScriptCache*>(data);
// Find the location of the global handle.
Script** location =
reinterpret_cast<Script**>(Utils::OpenHandle(*obj).location());
reinterpret_cast<Script**>(Utils::OpenHandle(**obj).location());
ASSERT((*location)->IsScript());
// Remove the entry from the cache.
@ -678,8 +677,7 @@ void ScriptCache::HandleWeakScript(v8::Isolate* isolate,
script_cache->collected_scripts_.Add(id);
// Clear the weak handle.
obj.Dispose(isolate);
obj.Clear();
obj->Dispose(isolate);
}
@ -699,7 +697,7 @@ void Debug::SetUp(bool create_heap_objects) {
void Debug::HandleWeakDebugInfo(v8::Isolate* isolate,
v8::Persistent<v8::Value> obj,
v8::Persistent<v8::Value>* obj,
void* data) {
Debug* debug = reinterpret_cast<Isolate*>(isolate)->debug();
DebugInfoListNode* node = reinterpret_cast<DebugInfoListNode*>(data);
@ -727,7 +725,6 @@ DebugInfoListNode::DebugInfoListNode(DebugInfo* debug_info): next_(NULL) {
(global_handles->Create(debug_info)));
global_handles->MakeWeak(reinterpret_cast<Object**>(debug_info_.location()),
this,
NULL,
Debug::HandleWeakDebugInfo);
}

4
src/debug.h
View File

@ -190,7 +190,7 @@ class ScriptCache : private HashMap {
// Weak handle callback for scripts in the cache.
static void HandleWeakScript(v8::Isolate* isolate,
v8::Persistent<v8::Value> obj,
v8::Persistent<v8::Value>* obj,
void* data);
// List used during GC to temporarily store id's of collected scripts.
@ -387,7 +387,7 @@ class Debug {
// Passed to MakeWeak.
static void HandleWeakDebugInfo(v8::Isolate* isolate,
v8::Persistent<v8::Value> obj,
v8::Persistent<v8::Value>* obj,
void* data);
friend class Debugger;

3
src/deoptimizer.cc
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@ -463,7 +463,7 @@ void Deoptimizer::DeoptimizeAllFunctionsWith(Isolate* isolate,
void Deoptimizer::HandleWeakDeoptimizedCode(v8::Isolate* isolate,
v8::Persistent<v8::Value> obj,
v8::Persistent<v8::Value>* obj,
void* parameter) {
DeoptimizingCodeListNode* node =
reinterpret_cast<DeoptimizingCodeListNode*>(parameter);
@ -2750,7 +2750,6 @@ DeoptimizingCodeListNode::DeoptimizingCodeListNode(Code* code): next_(NULL) {
code_ = Handle<Code>::cast(global_handles->Create(code));
global_handles->MakeWeak(reinterpret_cast<Object**>(code_.location()),
this,
NULL,
Deoptimizer::HandleWeakDeoptimizedCode);
}

2
src/deoptimizer.h
View File

@ -403,7 +403,7 @@ class Deoptimizer : public Malloced {
// Weak handle callback for deoptimizing code objects.
static void HandleWeakDeoptimizedCode(v8::Isolate* isolate,
v8::Persistent<v8::Value> obj,
v8::Persistent<v8::Value>* obj,
void* data);
// Deoptimize function assuming that function->next_function_link() points

48
src/global-handles.cc
View File

@ -92,7 +92,7 @@ class GlobalHandles::Node {
set_partially_dependent(false);
set_in_new_space_list(false);
parameter_or_next_free_.next_free = NULL;
near_death_callback_ = NULL;
weak_reference_callback_ = NULL;
}
#endif
@ -113,7 +113,7 @@ class GlobalHandles::Node {
set_partially_dependent(false);
set_state(NORMAL);
parameter_or_next_free_.parameter = NULL;
near_death_callback_ = NULL;
weak_reference_callback_ = NULL;
IncreaseBlockUses();
}
@ -126,7 +126,7 @@ class GlobalHandles::Node {
class_id_ = v8::HeapProfiler::kPersistentHandleNoClassId;
set_independent(false);
set_partially_dependent(false);
near_death_callback_ = NULL;
weak_reference_callback_ = NULL;
#endif
DecreaseBlockUses();
}
@ -232,19 +232,11 @@ class GlobalHandles::Node {
}
void MakeWeak(void* parameter,
RevivableCallback weak_reference_callback,
NearDeathCallback near_death_callback) {
RevivableCallback weak_reference_callback) {
ASSERT(state() != FREE);
set_state(WEAK);
set_parameter(parameter);
if (weak_reference_callback != NULL) {
flags_ = IsWeakCallback::update(flags_, true);
near_death_callback_ =
reinterpret_cast<NearDeathCallback>(weak_reference_callback);
} else {
flags_ = IsWeakCallback::update(flags_, false);
near_death_callback_ = near_death_callback;
}
weak_reference_callback_ = weak_reference_callback;
}
void ClearWeakness() {
@ -255,7 +247,7 @@ class GlobalHandles::Node {
bool PostGarbageCollectionProcessing(Isolate* isolate) {
if (state() != Node::PENDING) return false;
if (near_death_callback_ == NULL) {
if (weak_reference_callback_ == NULL) {
Release();
return false;
}
@ -263,7 +255,7 @@ class GlobalHandles::Node {
set_state(NEAR_DEATH);
set_parameter(NULL);
v8::Persistent<v8::Value> object = ToApi<v8::Value>(handle());
Object** object = location();
{
// Check that we are not passing a finalized external string to
// the callback.
@ -273,19 +265,9 @@ class GlobalHandles::Node {
ExternalTwoByteString::cast(object_)->resource() != NULL);
// Leaving V8.
VMState<EXTERNAL> state(isolate);
if (near_death_callback_ != NULL) {
if (IsWeakCallback::decode(flags_)) {
RevivableCallback callback =
reinterpret_cast<RevivableCallback>(near_death_callback_);
callback(reinterpret_cast<v8::Isolate*>(isolate),
&object,
weak_reference_callback_(reinterpret_cast<v8::Isolate*>(isolate),
reinterpret_cast<Persistent<Value>*>(&object),
par);
} else {
near_death_callback_(reinterpret_cast<v8::Isolate*>(isolate),
object,
par);
}
}
}
// Absence of explicit cleanup or revival of weak handle
// in most of the cases would lead to memory leak.
@ -318,12 +300,11 @@ class GlobalHandles::Node {
class IsIndependent: public BitField<bool, 4, 1> {};
class IsPartiallyDependent: public BitField<bool, 5, 1> {};
class IsInNewSpaceList: public BitField<bool, 6, 1> {};
class IsWeakCallback: public BitField<bool, 7, 1> {};
uint8_t flags_;
// Handle specific callback - might be a weak reference in disguise.
NearDeathCallback near_death_callback_;
RevivableCallback weak_reference_callback_;
// Provided data for callback. In FREE state, this is used for
// the free list link.
@ -509,12 +490,9 @@ void GlobalHandles::Destroy(Object** location) {
void GlobalHandles::MakeWeak(Object** location,
void* parameter,
RevivableCallback weak_reference_callback,
NearDeathCallback near_death_callback) {
ASSERT((weak_reference_callback == NULL) != (near_death_callback == NULL));
Node::FromLocation(location)->MakeWeak(parameter,
weak_reference_callback,
near_death_callback);
RevivableCallback weak_reference_callback) {
ASSERT(weak_reference_callback != NULL);
Node::FromLocation(location)->MakeWeak(parameter, weak_reference_callback);
}

3
src/global-handles.h
View File

@ -140,8 +140,7 @@ class GlobalHandles {
// reason is that Smi::FromInt(0) does not change during garage collection.
static void MakeWeak(Object** location,
void* parameter,
RevivableCallback weak_reference_callback,
NearDeathCallback near_death_callback);
RevivableCallback weak_reference_callback);
void RecordStats(HeapStats* stats);

5
src/handles.cc
View File

@ -345,9 +345,9 @@ Handle<Object> SetAccessor(Handle<JSObject> obj, Handle<AccessorInfo> info) {
// associated with the wrapper and get rid of both the wrapper and the
// handle.
static void ClearWrapperCache(v8::Isolate* v8_isolate,
Persistent<v8::Value> handle,
Persistent<v8::Value>* handle,
void*) {
Handle<Object> cache = Utils::OpenHandle(*handle);
Handle<Object> cache = Utils::OpenHandle(**handle);
JSValue* wrapper = JSValue::cast(*cache);
Foreign* foreign = Script::cast(wrapper->value())->wrapper();
ASSERT(foreign->foreign_address() ==
@ -387,7 +387,6 @@ Handle<JSValue> GetScriptWrapper(Handle<Script> script) {
// garbage collector when it is not used anymore.
Handle<Object> handle = isolate->global_handles()->Create(*result);
isolate->global_handles()->MakeWeak(handle.location(),
NULL,
NULL,
&ClearWrapperCache);
script->wrapper()->set_foreign_address(

7
src/profile-generator.cc
View File

@ -68,7 +68,6 @@ int TokenEnumerator::GetTokenId(Object* token) {
// to a token object in the V8's heap.
isolate->global_handles()->MakeWeak(handle.location(),
this,
NULL,
TokenRemovedCallback);
token_locations_.Add(handle.location());
token_removed_.Add(false);
@ -77,11 +76,11 @@ int TokenEnumerator::GetTokenId(Object* token) {
void TokenEnumerator::TokenRemovedCallback(v8::Isolate* isolate,
v8::Persistent<v8::Value> handle,
v8::Persistent<v8::Value>* handle,
void* parameter) {
reinterpret_cast<TokenEnumerator*>(parameter)->TokenRemoved(
Utils::OpenHandle(*handle).location());
handle.Dispose(isolate);
Utils::OpenHandle(**handle).location());
handle->Dispose(isolate);
}

2
src/profile-generator.h
View File

@ -48,7 +48,7 @@ class TokenEnumerator {
private:
static void TokenRemovedCallback(v8::Isolate* isolate,
v8::Persistent<v8::Value> handle,
v8::Persistent<v8::Value>* handle,
void* parameter);
void TokenRemoved(Object** token_location);

9
test/cctest/test-heap.cc
View File

@ -423,8 +423,7 @@ TEST(WeakGlobalHandlesScavenge) {
global_handles->MakeWeak(h2.location(),
reinterpret_cast<void*>(1234),
&TestWeakGlobalHandleCallback,
NULL);
&TestWeakGlobalHandleCallback);
// Scavenge treats weak pointers as normal roots.
heap->PerformScavenge();
@ -470,8 +469,7 @@ TEST(WeakGlobalHandlesMark) {
global_handles->MakeWeak(h2.location(),
reinterpret_cast<void*>(1234),
&TestWeakGlobalHandleCallback,
NULL);
&TestWeakGlobalHandleCallback);
CHECK(!GlobalHandles::IsNearDeath(h1.location()));
CHECK(!GlobalHandles::IsNearDeath(h2.location()));
@ -507,8 +505,7 @@ TEST(DeleteWeakGlobalHandle) {
global_handles->MakeWeak(h.location(),
reinterpret_cast<void*>(1234),
&TestWeakGlobalHandleCallback,
NULL);
&TestWeakGlobalHandleCallback);
// Scanvenge does not recognize weak reference.
heap->PerformScavenge();

27
test/cctest/test-mark-compact.cc
View File

@ -323,16 +323,13 @@ TEST(ObjectGroups) {
global_handles->Create(HEAP->AllocateFixedArray(1)->ToObjectChecked());
global_handles->MakeWeak(g1s1.location(),
reinterpret_cast<void*>(1234),
&WeakPointerCallback,
NULL);
&WeakPointerCallback);
global_handles->MakeWeak(g1s2.location(),
reinterpret_cast<void*>(1234),
&WeakPointerCallback,
NULL);
&WeakPointerCallback);
global_handles->MakeWeak(g1c1.location(),
reinterpret_cast<void*>(1234),
&WeakPointerCallback,
NULL);
&WeakPointerCallback);
Handle<Object> g2s1 =
global_handles->Create(HEAP->AllocateFixedArray(1)->ToObjectChecked());
@ -342,16 +339,13 @@ TEST(ObjectGroups) {
global_handles->Create(HEAP->AllocateFixedArray(1)->ToObjectChecked());
global_handles->MakeWeak(g2s1.location(),
reinterpret_cast<void*>(1234),
&WeakPointerCallback,
NULL);
&WeakPointerCallback);
global_handles->MakeWeak(g2s2.location(),
reinterpret_cast<void*>(1234),
&WeakPointerCallback,
NULL);
&WeakPointerCallback);
global_handles->MakeWeak(g2c1.location(),
reinterpret_cast<void*>(1234),
&WeakPointerCallback,
NULL);
&WeakPointerCallback);
Handle<Object> root = global_handles->Create(*g1s1); // make a root.
@ -380,8 +374,7 @@ TEST(ObjectGroups) {
// Weaken the root.
global_handles->MakeWeak(root.location(),
reinterpret_cast<void*>(1234),
&WeakPointerCallback,
NULL);
&WeakPointerCallback);
// But make children strong roots---all the objects (except for children)
// should be collectable now.
global_handles->ClearWeakness(g1c1.location());
@ -409,12 +402,10 @@ TEST(ObjectGroups) {
// And now make children weak again and collect them.
global_handles->MakeWeak(g1c1.location(),
reinterpret_cast<void*>(1234),
&WeakPointerCallback,
NULL);
&WeakPointerCallback);
global_handles->MakeWeak(g2c1.location(),
reinterpret_cast<void*>(1234),
&WeakPointerCallback,
NULL);
&WeakPointerCallback);
HEAP->CollectGarbage(OLD_POINTER_SPACE);
CHECK_EQ(7, NumberOfWeakCalls);

3
test/cctest/test-weakmaps.cc
View File

@ -114,8 +114,7 @@ TEST(Weakness) {
HandleScope scope(isolate);
global_handles->MakeWeak(key.location(),
reinterpret_cast<void*>(1234),
&WeakPointerCallback,
NULL);
&WeakPointerCallback);
}
CHECK(global_handles->IsWeak(key.location()));